function testFlatten()
{
$node = new Node();
$node->valid = true;
$node->change = Change::User;
$node->children[] = $child = new Node();
$child->change = Change::Internal;
$child->valid = false;
$child->messages[] = new Message(['id' => 'foo.bar']);
$flat = $node->flatten();
$this->assertInstanceOf(Node::class, $flat);
$this->assertFalse($flat->valid);
$this->assertEquals(Change::User, $flat->change);
}
/**
* @param depth int Internal
*/
public function formatNode(\Fulfil\Node $node, $depth = null)
{
return $this->formatAll($node->flatten()->messages, $depth);
}